1.f Norton SOHC Timing Case & Crankcase Parts

- Stainless steel nut that fits over jet holder on the International and SOHC Manx timing cover (feeding oil to the BigEnd).
- The same nut is also used on pre-Featherbed SOHC Manx Norton cambox covers (i.e. those with an additional oil feed). These nuts are very nicely made and really set the engine off well

- This is the bronze plunger used to feed oil to the Big End Bearing, fits all SOHC engines - Note : These plungers are NOT interchangeable with the Cambox Feed Plunger, as that plunger has a smaller feedhole!

- This is the jet holder that screws into the inner timing cover and retains the big end feed plunger - This is also used for the similar item on the racing cambox bevel cover for holding the camshaft oil feed jet holder - Aug 2012: Now back in stock!

- Stainless steel nut that fits over jet holder on the International/SOHC Manx timing cover - The same nut is also used on pre-Featherbed SOHC Manx Norton cambox covers (i.e. those with an additional oil feed)

- Timing Side left hand thread mainshaft nut. I had a small batch made like this, which were copied from one off a pre-war magnesium Manx engine I have. Not sure if this is original - but a bit lighter and they look nice!
- Fits all SOHC engines
- CNC machined from solid high tensile EN8 round bar (as high tensile imperial hexagon bar is getting very difficult to obtain)

- Manufactured in high quality stainless steel, these items have very fined slots along their length along oil to pass through but trapping any swarth or debris - Screws into the base of the timing case on all post 1931 SOHC engines - Not easy to manufacture, which I'm afraid is reflected in the price, but they do look really nice

- Manufactured in high quality stainless steel, these items have very fined slots along their length along oil to pass through but trapping any swarth or debris - Screws into the base of the timing case on all post 1931 SOHC engines - Not easy to manufacture, which I'm afraid is reflected in the price - For my own racing machines I tend to reduce the head of all the bolts, including this filter bolt, so I have made some of these for sale. They do not really save much weight, but they do look nice!

- Modern equivelant Dowty washer (outer washer is zinc plated steel, inner washer is neoprene). This washer is used behind the timing chamber filter bolt and also at the back of the rear cylinder crankcase mouth bolt (that has an oil feed)

- Large right hand thread driveside nut, secures engine sprocket on taper - Fits all SOHC engines and early DOHC engines - And now CNC machined from solid high tensile EN8 round bar (as high tensile imperial hexagon bar is getting very difficult to obtain), so they look really nice as well!

These are the unions that screw into the crankcase behind the timing chamber - it is the smaller 1/4" BSP side that screws into the crankcase, the larger side is 3/8" BSP and takes the distinctive large oil pipes fitted to Norton Internationals.

This is the Union that fits into International and SOHC Manx crankcases for both Feed and Return. It allows for the standard 3/8" BSP SOHC Norton oil pipes to be connected. It is very close to original but is a modern item, and uses a larger spanner hex, requiring a UNF spanner. This is a cheaper alternative to the original brass union that I have made specially (Item no 0246), but as you only need to screw it in once this is not really an issue - item is still high quality and is cadmium plated. - Price is per each

Correct (and as per original) 1/4" BSP 'One Way Valve' - as fitted to all Norton singles, including all SOHC, OHV and SV models - this item screwing into the recess just above the drive side main bearings, allowing the engine to breathe correctly

This is a faithful reproduction of the straight through union fitted to SOHC (and DOHC) cambox's for connecting the cambox oil feed pipe (fitted at top of crankcase and cambox), but also used as a front crankcase breather on many Inters and magnesium racing engines. Finally it is also fitted as a breather union on the bevel chamber of magnesium racing crankcases behind the inner timing cover (while Inter crankcases instead employ a pressure telltale unit). Copied from an original pre-war item

Surprisingly it is very difficult to find good quality vulcanised (red fibre) washers to fit 1/4"BSP fittings. These red fibre washers are of the highest quality (from a specialist manufacturer) and have just the right external diameter - but are a very tight fit on the thread. To fit them I place the breather (or similar 1/4" BSP fitting) in soft jaw vice, then place these washers just onto the thread - then I carefully use a pair of large pliers (the circular hole with coarse teeth) to carefully wind them onto the thread. Although this is difficult - the result is the correct size washer that does not look out of place under a Norton breather (unlike many modern ones that are far too wide and look out of place). These are high quality washers from a top manufacturer - sold in pack of 5. Note: do not buy if you are worried you might not be able to fit them!!

This is the oil tank union fitted to many International\Manx oil tanks with the larger 3\8" BSP fitting on both sides (crankcase unions were smaller on the crankcase side).
Please note - these do not have gauze filters fitted, which the 'Feed' side union would have had originally (I might make some of these in the future). Gauze can easily be added in by soft soldering.

1/4" BSP Copper Washer - pack of 3. This washer is suitable for use in 3 places - the main Oil pipe unions that screw into the crankcase (see second photograph), the Oil filter bolt that fits at the base of the timing case chamber or the sump plug screw.

- 1/4" BSP Copper Washer - pack of 3. This washer is suitable for use in 3 places - the Drive Side One Way Valve and the straight through breather or unions fitted to SOHC crankcase fittings and cambox. These washers are not quite as wide as item 0090b, and therefore look less obtrusive when fitted behind these unions (you may decide though you prefer to fit red fibre washers which we also sell). These can also be fitted to 1/4 BSP petrol taps. Sold as a pack of 3

This is the oil pressure adjuster that sits behind the inner timing case. This is the adjuster used to regulate the oil pressure, used in conjunction with a stell ball and spring, which I also sell
It is also supplied with the correct 'half nut' style locknut, and with all my parts that are visible, they are both manufactured from stainless steel. Price is for both items